A prostitute pimped by Slaughter, Pierson had been trading Loken, 38, sex for money for some time when she led Slaughter to Loken’s home, located in the 23300 block of Southeast 266th Street.

Known to Loken as “Kayla,” Pierson arrived at his house after arranging to buy six pounds of marijuana. As Loken cracked a beer, Clay, 32, and Slaughter rushed into the home.

Having forced Loken to open his safe, the men bound him with plastic ties and ransacked the house before taking guns and money to their waiting cars. Loken broke free, grabbed a 9 mm pistol hidden under a mattress and rushed outside in time to see Clay and Slaughter loading the rest of his guns into the back of an SUV.

One of the men raised a stolen AR-15-style rifle at Loken, who opened fire on the SUV and a car. He shot Clay and a woman who'd been duped into driving one of the men to the robbery.

The robbers made off with several rifles and shotguns, $300 cash and a quarter pound of marijuana, according to charging papers. Witnesses also reported seeing an SUV and Honda leaving the area while discarding items; investigators later recovered bloody guns thrown from the SUV.

Clay, Slaughter and Pierson stopped at a 7-Eleven near the shooting scene to seek medical help for Clay, who’d been shot in the face and back. Clay was rushed to Harborview Medical Center in Seattle with life-threatening injuries.

The second woman told investigators she was sitting in the car outside Loken’s home when the others rushed out carrying guns and pot. Writing the court, a King County Sheriff’s Office detective said the woman was “very upset about being unwittingly dragged into” the robbery and, apparently, about being shot in the backside.

The woman drove herself to Valley Medical Center in Kent. She told police she didn’t immediately realize she’d been shot.

Clay was arrested at Harborview while Slaughter turned himself in to police shortly after the shooting. Pierson was also arrested.

Police subsequently found about 100 marijuana plants growing inside Loken’s home. While Loken initially claimed to be running a medical marijuana collective garden, prosecutors say he later admitted that was “at best partially true.”